Edge oscillation
Edge oscillation is a term from magnetic resonance tomography (imaging method in medicine) and describes an artifact . The cause of the edge oscillation is the time limit for the duration of the scanning of the analog MRT signal. This truncates data.
In the picture, the edge oscillation is shown as periodically recurring lines along the edges of the objects shown or tissue transitions. This effect is pronounced in transitions with strong differences in the signal intensity of structures.
Synonyms : truncation or truncation artifact; Gibbs ringing (see Gibbs phenomenon )
Individual evidence
- ↑ Specialist examination radiology: 1250 commented examination questions. In: Guido Albes, Georg Thieme Verlag, Stuttgart. 2007, accessed April 2, 2020 .